vista Downgrade vgn cr-21s

[ocean82]

Hi everyone,

After formating my vaio, I installed XP pro SP3 succesfully. I have all
the drivers that are needed and everything works just fine...except the function
keys and hotkeys (mute, sound+/-, etc). I 've read that this is a problen in cr series.
I googled it and I found that there is a solution for another series (AR51E).
Does anyone have an idea for CR?!?!?!?!?!?!?!?
thanx in advance.

[shahzadali]

I am using Sony VAIO VGN-CR21Z and have the same problem after downgraded to the Windows XP Professional from Windows Vista Home Premium..